The late great Stan Winston was one of the undisputed masters of cinematic effects. With his team of make-up artists and puppeteers, Winston gave such films as Aliens and Predator an otherworldly sheen that's been seared into the collective memory of moviegoers for decades.

And on the Stan Winston School's YouTube account, there are tons of behind-the-scenes reels of the dinosaurs from the Jurassic Park films. Behold amazing footage of the velociraptors and Tyrannosaurus hanging out casually with their human puppet masters.

Here's the Tyrannosaurus Rex from the first Jurassic Park, just trying to play it cool in front of the crew.

This velociraptor from Jurassic Park 3 is still incredibly imposing in track pants.

The Compsognathus from The Lost World hopping around.

The velociraptor from The Lost World is terrifically bemused that he's been transformed into a popsicle.

The Pteranodon suit from Jurassic Park 3, which is more powerful than the most powerful power tie you could ever wear to the office.

A freaky tailless velociraptor costume from Jurassic Park.

The Spinosaurus pawing air on the set of Jurassic Park 3.

A baby Pteranodon puppet from Jurassic Park 3.

More velociraptor-on-a-stick from The Lost World.

Half a raptor on the prowl on the set of The Lost World.

There are even some random videos of Winston's other projects, like this ultra-lightweight garbage bag version of the Alien Queen from Aliens...

...the horrible Teddy doll from A.I...

...and some poor guy getting exsanguinated on the set of Interview with a Vampire.